content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * ------------------------
   * IntervalMarkerTests.java
   * ------------------------
   * (C) Copyright 2004-2012, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 14-Jun-2004 : Version 1 (DG);
   * 05-Sep-2006 : Added checks for MarkerChangeEvents (DG);
   * 17-Jun-2012 : Removed JCommon dependencies (DG);
   *
   */
  
  package org.jfree.chart.plot;
  
  import org.jfree.chart.event.MarkerChangeEvent;
  import org.jfree.chart.event.MarkerChangeListener;
  import org.jfree.chart.ui.GradientPaintTransformType;
  import org.jfree.chart.ui.GradientPaintTransformer;
  import org.jfree.chart.ui.StandardGradientPaintTransformer;
  import org.junit.jupiter.api.Test;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotSame;
  import static org.junit.jupiter.api.Assertions.assertSame;
  
  /**
   * Tests for the {@link IntervalMarker} class.
   */
  public class IntervalMarkerTest
  
      implements MarkerChangeListener {
  
      MarkerChangeEvent lastEvent;
  
      /**
       * Records the last event.
       *
       * @param event  the last event.
       */
      @Override
      public void markerChanged(MarkerChangeEvent event) {
          this.lastEvent = event;
      }
  
  
  
  
  
      /**
       * Confirm that the equals method can distinguish all the required fields.
       */
      @Test
      public void testEquals() {
  
          IntervalMarker m1 = new IntervalMarker(45.0, 50.0);
          IntervalMarker m2 = new IntervalMarker(45.0, 50.0);
          assertEquals(m1, m2);
          assertEquals(m2, m1);
  
          m1 = new IntervalMarker(44.0, 50.0);
          assertFalse(m1.equals(m2));
          m2 = new IntervalMarker(44.0, 50.0);
          assertEquals(m1, m2);
  
          m1 = new IntervalMarker(44.0, 55.0);
          assertFalse(m1.equals(m2));
          m2 = new IntervalMarker(44.0, 55.0);
          assertEquals(m1, m2);
  
          GradientPaintTransformer t = new StandardGradientPaintTransformer(
                  GradientPaintTransformType.HORIZONTAL);
          m1.setGradientPaintTransformer(t);
          assertFalse(m1.equals(m2));
          m2.setGradientPaintTransformer(t);
          assertEquals(m1, m2);
  
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          IntervalMarker m1 = new IntervalMarker(45.0, 50.0);
          IntervalMarker m2 = (IntervalMarker) m1.clone();
          assertNotSame(m1, m2);
          assertSame(m1.getClass(), m2.getClass());
          assertEquals(m1, m2);
      }
  
     /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
  
          IntervalMarker m1 = new IntervalMarker(45.0, 50.0);
  
  
          ByteArrayOutputStream buffer = new ByteArrayOutputStream();
          ObjectOutput out = new ObjectOutputStream(buffer);
          out.writeObject(m1);
          out.close();
  
          ObjectInput in = new ObjectInputStream(
                  new ByteArrayInputStream(buffer.toByteArray()));
          IntervalMarker m2 = (IntervalMarker) in.readObject();
          in.close();
  
          assertEquals(m1, m2);
  
      }
  
      private static final double EPSILON = 0.0000000001;
  
      /**
       * Some checks for the getStartValue() and setStartValue() methods.
       */
      @Test
      public void testGetSetStartValue() {
          IntervalMarker m = new IntervalMarker(1.0, 2.0);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(1.0, m.getStartValue(), EPSILON);
          m.setStartValue(0.5);
          assertEquals(0.5, m.getStartValue(), EPSILON);
          assertEquals(m, this.lastEvent.getMarker());
      }
  
      /**
       * Some checks for the getEndValue() and setEndValue() methods.
       */
      @Test
      public void testGetSetEndValue() {
          IntervalMarker m = new IntervalMarker(1.0, 2.0);
          m.addChangeListener(this);
          this.lastEvent = null;
          assertEquals(2.0, m.getEndValue(), EPSILON);
          m.setEndValue(0.5);
          assertEquals(0.5, m.getEndValue(), EPSILON);
          assertEquals(m, this.lastEvent.getMarker());
      }
  }
  